CN106768296B - A method for distinguishing ground vibration signal interference applied to underground excavation system - Google Patents
A method for distinguishing ground vibration signal interference applied to underground excavation system Download PDFInfo
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- CN106768296B CN106768296B CN201611214117.5A CN201611214117A CN106768296B CN 106768296 B CN106768296 B CN 106768296B CN 201611214117 A CN201611214117 A CN 201611214117A CN 106768296 B CN106768296 B CN 106768296B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009412 basement excavation Methods 0.000 title claims description 4
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 28
- 230000035939 shock Effects 0.000 claims abstract description 9
- 230000004069 differentiation Effects 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002123 temporal effect Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of method of differentiation earth shock signal interference applied to mine working system, by the way that more than two seismic detection devices are arranged in monitoring region；When target is advanced, temporal information when monitoring region of the target by each seismic detection device is acquired；Due to the distance between known two seismic detection devices, target is calculated using the relationship of displacement and time and speed and passes through the average speed in two seismic detection devices monitoring regions；The origin cause of formation of Micro-seismic Signals is generated by the size judgement of average speed；The present invention feature larger using speed and surface car, the personnel's travel speed difference of mine working, judgement differentiation is carried out to collected Micro-seismic Signals by calculating the speed of target, to improve the efficiency for carrying out underground monitoring using microseismic activity, false alarm rate is substantially reduced.
Description
Technical field
The invention belongs to subsurface safety monitoring technology fields, are related to a kind of method of mine working system rejection to disturbance, specifically
It is a kind of method of differentiation earth shock signal interference applied to mine working system.
Background technique
Currently, security monitoring methods in China ground have very much, visited including the use of image monitoring, infrared acquisition, microwave
The technology and equipments such as survey, acoustic detection, ultrasonic listening, vibration invading detector are monitored, effect all clearly, but for
The pilferage that is carried out using mine working the criminal offences such as is stolen into another country, is escaped from prison and be but difficult effective monitoring and taken precautions against, and is all often subsequent
It could find that there is apparent hysteresis quality.Therefore, domestic many colleges and universities, scientific research institutions are all actively developing based on microseismic activity
The research and development of mine working monitoring system, the Micro-seismic Signals which is generated by perception mine working are as pre-warning signal.By
Micro-seismic Signals can be also generated when the vehicle on ground, personnel walk, are perceived by the mine working monitoring system based on microseismic activity
Afterwards, the early warning of mistake causes higher false alarm rate, causes severe jamming to the normal monitoring of underground digging system.
Summary of the invention
The present invention to solve the above-mentioned problems, proposes that a kind of differentiation earth shock signal applied to mine working system is dry
The method disturbed, is mainly utilized mine working speed when pilferage and surface car traveling, personnel's speed of travel difference are biggish
Feature.Since the speed of general mine working is less than 0.1 meter per second, and vehicle driving, the speed of personnel's walking are more than 0.1 meter per second
Greatly, therefore, excavation or earth shock signal interference are stolen to distinguish by calculating the movement velocity of target.
Used technical solution is the present invention to achieve the goals above: a kind of differentiation applied to mine working system
The method of earth shock signal interference includes the following steps: step 1, at least two seismic detections is arranged in monitoring region
Device；Step 2, monitor target movement when, acquire its by each seismic detection device monitor region when temporal information, acquisition
Time of the target in this regional movement；Step 3, the distance between by known two seismic detection devices, obtain target and exist
The displacement of this regional movement；Step 4, the time obtained by the step 2 and step 3 and displacement, acquisition target pass through two
The average speed in seismic detection device monitoring region；Step 5, by comparing calculation go out average speed and preset underground
The difference of excavation and ground run speed judges the origin cause of formation for generating Micro-seismic Signals, if calculating target passes through two ground
Shock sensor monitors the average speed in region less than 0.1 meter per second, is determined as mine working, if target passes through two earthquake motions
The average speed in detector monitors region is more than or equal to 0.1 meter per second, caused by being determined as that the vehicle driving on ground, personnel are walked
Interference.
The beneficial effects of the present invention are: can effectively exclude ground vehicle driving, Ren Yuanhang using method of the invention
The interference to mine working monitoring system is walked, false alarm rate is reduced, that is, the effect of mine working security monitoring is substantially improved.
Detailed description of the invention
Fig. 1 is the schematic illustration of the method for the present invention.
Specific embodiment
This method is described further with reference to the accompanying drawing:
A method of applied to the differentiation earth shock signal interference of mine working system, include the following steps:
Firstly, at least two seismic detection devices are arranged in monitoring region、, as shown in Figure 1, when detecting mesh
When mark movement, acquisition target monitors temporal information when region by each seismic detection device, utilizes displacement and time
Speed is calculated according to formula (1) in relationship, foundation:
(1)；
For the average value of target speed,It moves across for target with seismic detection deviceInstallation point is
Point arrives seismic detection deviceThe required time until installation point；For seismic detection deviceWith seismic detection device
The distance between；Pass throughAnd the distance that target moves during this period, visited to calculate target by two earthquake motions
Survey the average speed in device monitoring region。
As shown in Figure 1, above-mentioned two seismic detection device belongs to same model, it is laid in identical soil environment, because
This, two seismic detection device monitoring ranges having the same, target monitors the direction in region by two seismic detection devices,
It is identical as the line direction of two seismic detection devices.The calculating of target run duration can be counted by formula (2)
It calculates:
(2)；
In above-mentioned formula and Fig. 1,Seismic detection device is moved to for targetAt the time of installation point；For target fortune
Move seismic detection deviceAt the time of installation point；Enter seismic detection device for targetAt the time of monitoring region；
Seismic detection device is left for targetAt the time of monitoring region；Enter seismic detection device for targetMonitor region
Moment；Seismic detection device is left for targetAt the time of monitoring region.Due to、Can not Accurate Determining, so utilize
At the time of two seismic detection devices monitor that target enters, leaves, i.e.,、、、, target is calculated in this region
The time of movement.
Joint above-mentioned formula (1) (2) it can be concluded that velocity amplitude calculation formula (3):
(3)；
The distance that the time parameter measured using two seismic detection devices and two seismic detection devices are laid, band
Enter the speed that formula (3) calculates target movement, judges that target belongs to the mine working or ground of pilferage according to calculated result
Interference signal caused by face vehicle driving, personnel's walking, is finally reached the purpose for reducing false alarm rate.
Claims (1)
1. a kind of method of the differentiation earth shock signal interference applied to mine working system, it is characterised in that: including as follows
Step:
At least two seismic detection devices are arranged in monitoring region in step 1,With；
Step 2, monitor target movement when, acquisition target by each seismic detection device monitoring region when time letter
Breath, i.e., target moves into earthquake detectorAt the time of when monitoring region, target movement walk out earthquake detectorPrison
At the time of surveying region, target is moved into earthquake detectorAt the time of monitoring region, target, which moves, walks out earthquake spy
Survey deviceAt the time of monitoring region, at the time of monitoring target different conditions by two seismic detection devices, formula, target is calculated in the time of this regional movement；
Step 3 passes through known two seismic detection devicesWithBetween interval, determine target in two seismic detection devices
Between displacement be；
Step 4, time and displacement by the step 2 and step 3 acquisition, utilize the relationship of displacement and time and speed to use
FormulaCalculate the average speed that target passes through two seismic detection device search coverages；
Step 5, the average speed for passing through two seismic detection device search coverages according to targetSize judge that target belongs to ground
The interference signal of lower excavation behavior or ground staff and vehicle driving；If calculating target passes through two seismic detection devices
The average speed in region is monitored less than 0.1 meter per second, is determined as mine working behavior, if target passes through two seismic detection devices
The average speed for monitoring region is more than or equal to 0.1 meter per second, is determined as the interference signal of ground staff and vehicle driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214117.5A CN106768296B (en) | 2016-12-26 | 2016-12-26 | A method for distinguishing ground vibration signal interference applied to underground excavation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214117.5A CN106768296B (en) | 2016-12-26 | 2016-12-26 | A method for distinguishing ground vibration signal interference applied to underground excavation system |
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| Publication Number | Publication Date |
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| CN106768296A CN106768296A (en) | 2017-05-31 |
| CN106768296B true CN106768296B (en) | 2019-04-19 |
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| CN201611214117.5A Expired - Fee Related CN106768296B (en) | 2016-12-26 | 2016-12-26 | A method for distinguishing ground vibration signal interference applied to underground excavation system |
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| CN111413734B (en) * | 2020-04-10 | 2023-03-10 | 徐州弘毅科技发展有限公司 | Calculation method for testing propagation speed and arrival time of underground vibration wave |
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Patent Citations (7)
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